Rename data-jdbc to data-jdbc-h2

data-jdbc-h2/src/main/java/com/example/data/jdbc/AuthorRepository.java

@@ -0,0 +1,17 @@
+package com.example.data.jdbc;
+
+import java.util.Optional;
+
+import com.example.data.jdbc.model.Author;
+
+import org.springframework.data.jdbc.repository.query.Query;
+import org.springframework.data.repository.ListCrudRepository;
+
+public interface AuthorRepository extends ListCrudRepository<Author, Long> {
+
+	Optional<Author> findByNameContainingIgnoreCase(String partialName);
+
+	@Query("SELECT * FROM author a WHERE a.name = :name LIMIT 1")
+	Optional<Author> queryFindByName(String name);
+
+}

data-jdbc-h2/src/main/java/com/example/data/jdbc/CLR.java

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+package com.example.data.jdbc;
+
+import java.util.List;
+import java.util.Set;
+
+import com.example.data.jdbc.model.Author;
+import com.example.data.jdbc.model.Book;
+
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+@Component
+class CLR implements CommandLineRunner {
+
+	private final AuthorRepository authorRepository;
+
+	CLR(AuthorRepository authorRepository) {
+		this.authorRepository = authorRepository;
+	}
+
+	@Override
+	public void run(String... args) {
+		insertAuthors();
+		listAllAuthors();
+		findById();
+		findByPartialName();
+		queryFindByName();
+		deleteAll();
+	}
+
+	private void deleteAll() {
+		this.authorRepository.deleteAll();
+		long count = this.authorRepository.count();
+		System.out.printf("deleteAll(): count = %d%n", count);
+	}
+
+	private void queryFindByName() {
+		Author author1 = this.authorRepository.queryFindByName("Josh Long").orElse(null);
+		Author author2 = this.authorRepository.queryFindByName("Martin Kleppmann").orElse(null);
+
+		System.out.printf("queryFindByName(): author1 = %s%n", author1);
+		System.out.printf("queryFindByName(): author2 = %s%n", author2);
+	}
+
+	private void findByPartialName() {
+		Author author1 = this.authorRepository.findByNameContainingIgnoreCase("sh lo").orElse(null);
+		Author author2 = this.authorRepository.findByNameContainingIgnoreCase("in kl").orElse(null);
+
+		System.out.printf("findByPartialName(): author1 = %s%n", author1);
+		System.out.printf("findByPartialName(): author2 = %s%n", author2);
+	}
+
+	private void findById() {
+		Author author1 = this.authorRepository.findById(1L).orElse(null);
+		Author author2 = this.authorRepository.findById(2L).orElse(null);
+
+		System.out.printf("findById(): author1 = %s%n", author1);
+		System.out.printf("findById(): author2 = %s%n", author2);
+	}
+
+	private void listAllAuthors() {
+		List<Author> authors = this.authorRepository.findAll();
+		for (Author author : authors) {
+			System.out.printf("listAllAuthors(): author = %s%n", author);
+			for (Book book : author.getBooks()) {
+				System.out.printf("\t%s%n", book);
+			}
+		}
+	}
+
+	private void insertAuthors() {
+		Author author1 = this.authorRepository.save(new Author(null, "Josh Long",
+				Set.of(new Book(null, "Reactive Spring"), new Book(null, "Cloud Native Java"))));
+		Author author2 = this.authorRepository.save(
+				new Author(null, "Martin Kleppmann", Set.of(new Book(null, "Designing Data Intensive Applications"))));
+
+		System.out.printf("insertAuthors(): author1 = %s%n", author1);
+		System.out.printf("insertAuthors(): author2 = %s%n", author2);
+	}
+
+}

data-jdbc-h2/src/main/java/com/example/data/jdbc/DataJdbcApplication.java

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+package com.example.data.jdbc;
+
+import org.springframework.aot.smoketest.thirdpartyhints.HikariRuntimeHints;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ImportRuntimeHints;
+
+@SpringBootApplication
+@ImportRuntimeHints(HikariRuntimeHints.class)
+public class DataJdbcApplication {
+
+	public static void main(String[] args) throws InterruptedException {
+		SpringApplication.run(DataJdbcApplication.class, args);
+		Thread.currentThread().join(); // To be able to measure memory consumption
+	}
+
+}

data-jdbc-h2/src/main/java/com/example/data/jdbc/DataJdbcConfiguration.java

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+package com.example.data.jdbc;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.jdbc.repository.config.EnableJdbcRepositories;
+
+@Configuration
+@EnableJdbcRepositories
+class DataJdbcConfiguration {
+
+}

data-jdbc-h2/src/main/java/com/example/data/jdbc/model/Author.java

@@ -0,0 +1,58 @@
+package com.example.data.jdbc.model;
+
+import java.util.Objects;
+import java.util.Set;
+
+import org.springframework.data.annotation.Id;
+
+public class Author {
+
+	@Id
+	private final Long id;
+
+	private final String name;
+
+	private final Set<Book> books;
+
+	public Author(Long id, String name, Set<Book> books) {
+		this.id = id;
+		this.name = name;
+		this.books = books;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public Set<Book> getBooks() {
+		return books;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) {
+			return true;
+		}
+		if (o == null || getClass() != o.getClass()) {
+			return false;
+		}
+		Author author = (Author) o;
+		return Objects.equals(id, author.id) && Objects.equals(name, author.name)
+				&& Objects.equals(books, author.books);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(id, name, books);
+	}
+
+	@Override
+	public String toString() {
+		return "Author{" + "name='" + name + '\'' + '}';
+	}
+
+}

data-jdbc-h2/src/main/java/com/example/data/jdbc/model/Book.java

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+package com.example.data.jdbc.model;
+
+import java.util.Objects;
+
+import org.springframework.data.annotation.Id;
+
+public class Book {
+
+	@Id
+	private final Long id;
+
+	private final String title;
+
+	public Book(Long id, String title) {
+		this.id = id;
+		this.title = title;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public String getTitle() {
+		return title;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) {
+			return true;
+		}
+		if (o == null || getClass() != o.getClass()) {
+			return false;
+		}
+		Book book = (Book) o;
+		return Objects.equals(id, book.id) && Objects.equals(title, book.title);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(id, title);
+	}
+
+	@Override
+	public String toString() {
+		return "Book{" + "title='" + title + '\'' + '}';
+	}
+
+}